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What is the value of 5x -3y when x equals -2 and y equals -4?
5(-2)+(-3)(-4) =-(10)+12 =2
If 4x plus 5 equals 2 then what is x?
The equation 4x + 5 = 2 has the solution 4x = -3 and x = - 3/4 (minus 3/4).
What is 4X - 3y when X equals 5 and Y equals 2?
x = 5 y = 2 4x - 3y = ? 4(5) - 3(2) = ? 20 - 6 = 14
What is a solution to these equations X plus Y equals -8 and 2x - y equals 4?
x+y=-8 2x-y=4 y=-x-8 2x+x+8=4 3x=-4 x=-4/3 -4/3 + y= -8 y = -8 + 4/3 y= -6 2/3
What is X - 2y equals -1 and 2x - y equals 4?
Solving by the elimination method gives: x = 3 and y = 2
What is the answer for these expressions y equals 3 parenthesis -3over2 parenthesis to the power of 2 plus 9 parenthesis -3over2 parenthesis -8?
If you mean: y = 3(-3/2)2+9(-3/2)-8 Then: y = -59/4 or as -14.75
Insert two parenthesis 10 minus 4 divided by 2 X 3 equals 24?
(10-4/2)x3=24
Solve 3 over 2 parenthesis 1 minus 5 parenthesis equals negative 6?
3/2(1-5)=-6 3/2(-4)=-6 3/-8=-6 Not equal. This equation is a false equation. Unless a variable was meant to be in the equation, this equation is not equal.
Is subtraction associative?
Yes, because theres parenthesis around each problem. is wrong because if there wasn't parenthesis example 2-3-4= -5 then mix it up example 3-4-2= -3 so it is not * * * * * Subtraction is NOT associative. Consider 2 - 3 - 4 2 - (3 - 4) = 2 - (-1) = 2 + 1 = 3 (2 - 3) - 4 = -1 - 4 = -5
What is -2 parenthesis x plus 4 parenthesis?
-2(x+4) = -2x-8
What role playd by parenthesis in an xpression in c language?
Grouping, just in mathematics: (2+3)*4 is not equal to 2+(3*4)
Does 2 plus 2 equal 3?
Equals 4, Not 32 + 2 equals 4, not 3.No, 2 plus 2 is 4.
4 over 7 plus parenthesis minus 1 over 3 parenthesis equals?
13/21 - 7/21 = 6/21 Sorry, DJ, 4 over 7 = 12/21 so answer is 5/21
Why the location of the parentheses can affect the value of the expression?
the parenthesis take precedence in the order of operations. The operations inside the parenthesis are taken first. Example 6 - 2 + 3 without parenthesis, you take addition/subtraction in order from left to right. 6 -2 = 4, then add 3 = 7 Now add some parenthesis. (6 - 2) + 3 Note that we do the (6-2) first because it's in parentheses, then add 3 (4) + 3 = 7 6 - (2 + 3). Now perform (2+3) first = 5, then 6 - (5) = 1.
What is the answer to x over -4 plus 3 equals 15?
Use parenthesis next time. I assume you mean, (X/- 4) + 3 = 15 drop parenthesis and multiply through by - 4 X - 12 = - 60 X = - 48 ----------------check in original equation - 48/- 4 + 3 = 15 12 + 3 = 15 15 = 15 --------------checks
How do you write a number sentence using 3 4 5 6 7 and 10 equals 3 using parenthesis?
(3x4+5+6+7)/10=3
How do you solve given G open parenthesis X close parenthesis equals X2 plus X find G open parenthesis negative 2 close parenthesis?
You are given: G(x) = x2 + x So if you want to solve G(2), all you need to do is replace all occurrences of "x" with the number 2, then work out what it comes to. G(2) = 22 + 2 ∴G(2) = 4 + 2 ∴G(2) = 6
